<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>user</title>
<link rel="stylesheet" type="text/css" href="../css/user.css">

<script type="text/javascript" src="user.js"></script>
</head>
<body>
aa
<script type="text/javascript">
alert(test());
</script>
</body>
</html>